00635cam a22002173a 450000100060000000300060000600500170001200800410002904000150007004200070008505000070009210000210009924501020012026000290022250600300025151600200028165300290030165300160033083000290034685600420037527936PGUSA20140828083614.0090130s2009||||xxu|||||s|||||000 | eng d  aPGUSAbeng  adc 4aQA1 aJacomy-Régnier10aHistoire des nombres et de la numération mécaniqueh[electronic resource] /cJacomy-Régnier  bProject Gutenberg,c2009  aPublic domain in the USA.  aElectronic text  aMathematical instruments  aCalculators 0aProject Gutenbergv2793640uhttp://www.gutenberg.org/ebooks/27936